When I installed Microsoft Visual Studio 2015 Professional RC, I get the following error:
Microsoft Visual Studio Emulator for Android : The installer failed
Chances are that you have either not enabled Hyper-V or your machine does not allow Hyper-V due to hardware limitations
For me, I actually had Hyper-V already enabled, and still had the error. But after running the VS installer again, it now succeeded.
It was the same issue for me. Enabling Hyper-V support in Windows components solved the problem. (Win+R
-> "OptionalFeatures.exe"
)
However, in my case, I also had to enable virtualization support in bios.
I found this article helpful: https://msdn.microsoft.com/en-us/library/windows/apps/jj863509(v=vs.105).aspx